CN106817541A - A kind of method and system taken pictures based on facial expression control - Google Patents
A kind of method and system taken pictures based on facial expression control Download PDFInfo
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- CN106817541A CN106817541A CN201710016433.XA CN201710016433A CN106817541A CN 106817541 A CN106817541 A CN 106817541A CN 201710016433 A CN201710016433 A CN 201710016433A CN 106817541 A CN106817541 A CN 106817541A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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Abstract
The invention provides a kind of method and system taken pictures based on facial expression control, by after terminal camera completes to shoot forward image, automatic conversion camera, obtain user images, and the characteristic information to containing in user images is identified, judge whether to contain face characteristic information, if containing, expressive features identification then is carried out to face characteristic information, determine whether in multiple default human face expression features, if then controlling take pictures control instruction of the camera according to associated by default human face expression feature, perform the operation closed camera or take pictures again, so as to user can be controlled only by sending different facial expressions just camera can be taken pictures, for the photographing operation of user is provided conveniently, improve the intelligent of terminal.
Description
Technical field
The present invention relates to terminal control technical field, more particularly to a kind of method taken pictures based on facial expression control
And system.
Background technology
Intelligent terminal of the prior art generally all carries camera function, and terminal user is shot using camera
Photo is also very universal, but because the photo that terminal camera shoots generally belongs to idiot camera class, and need not be too
Many technical ability can just carry out photograph taking, and the photo shot can not reach customer satisfaction system degree mostly, therefore user exists
, it is necessary to frequently return to terminal photograph album during taking pictures, it is confirmed whether to preserve photo, if need to shoot again, and frequently
Repeatedly return to confirmation and deletion action brings inconvenience to the shooting of user.
Therefore, prior art awaits further improvement.
The content of the invention
In view of above-mentioned weak point of the prior art, a kind of based on facial table it is an object of the invention to provide the user
The method and system that feelings control is taken pictures, overcome terminal camera in the prior art to control that take pictures to lack according to user's expression
Fall into.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of method taken pictures based on facial expression control, wherein, including step：
Step A, after terminal camera completes to shoot forward image, automatic conversion camera obtains user images, and to user
The characteristic information contained in image is identified, and judges whether containing face characteristic information, if it does, then performing step B；
Step B, expressive features identification is carried out to face characteristic information, determine whether in multiple default human face expression features
It is individual, if so, then performing step C；
Step C, control camera are performed and close camera according to the control instruction of taking pictures being associated with default human face expression feature
Or the operation taken pictures again.
The described method taken pictures based on facial expression control, wherein, also include before the step A：
Step A01, the default at least two human face expression features corresponding with control instruction of taking pictures, and default human face expression is special
Levy is associated from different control instructions of taking pictures respectively.
The described method taken pictures based on facial expression control, wherein, the step A also includes：
Step A1, after camera is opened, whether judge electric current in camera module beyond pre-set current value, if exceeding,
Automatic conversion camera, obtains user images, otherwise, does not carry out camera conversion operation.
The described method taken pictures based on facial expression control, wherein, the default human face expression feature includes：Frown table
Feelings feature and smiling face's expressive features；The step C also includes：
Step C1, when expressive features are identified as expressive features of frowning, then there is the first control request signal to central processing unit, in
Central processor calls first control instruction corresponding with the expressive features of frowning, and control camera is taken pictures again.
The described method taken pictures based on facial expression control, wherein, the step C also includes：
Step C2, when expressive features are identified as smiling face's expressive features, then there is the second control request signal to central processing unit, in
Central processor calls the second control instruction being associated with smiling face's expressive features, and control camera is closed.
A kind of system taken pictures based on facial expression control, wherein, including：
Characteristics of image identification module, for after terminal camera completes to shoot forward image, automatic conversion camera to be obtained and used
Family image, and characteristic information to containing in user images is identified, and judges whether to contain face characteristic information；
Expressive features identification module, for when face characteristic information is contained in user images, then carrying out table to face characteristic information
Feelings feature recognition, determines whether in multiple default human face expression features；
Control photo module, for when judging in expressive features containing default human face expression feature, then control camera according to
Control instruction of taking pictures corresponding to default human face expression feature, performs the operation closed camera or take pictures again.
The described system taken pictures based on facial expression control, wherein, the system also includes：
Expressive features presetting module, for presetting at least two human face expression features corresponding with control instruction of taking pictures, and will
Default human face expression feature is associated from different control instructions of taking pictures respectively.
The described system taken pictures based on facial expression control, wherein, described image feature recognition module includes：
Shot detection unit, for whether after camera is opened, judging the electric current in camera module beyond pre-set current value,
If exceeding, automatic conversion camera obtains user images, otherwise, does not carry out camera conversion operation.
The described system taken pictures based on facial expression control, wherein, the default human face expression feature includes：Frown table
Feelings feature and smiling face's expressive features；The control photo module includes：
Again take pictures control unit, for being identified as expressive features of frowning when expressive features, then the first control request signal occurs
To central processing unit, central processing unit calls the first control instruction being associated with the expressive features of frowning, and controls camera
Again take pictures.
The described system taken pictures based on facial expression control, wherein, the control module also includes：
Photographing unit is closed, for being identified as smiling face's expressive features when expressive features, then the second control request signal occurs in
Central processor, central processing unit calls the second control instruction being associated with smiling face's expressive features, and control camera is closed.
Beneficial effect, the invention provides a kind of method and system taken pictures based on facial expression control, by working as terminal
After camera completes to shoot forward image, automatic conversion camera obtains user images, and the feature to containing in user images
Information is identified, and judges whether containing face characteristic information, if it does, then carrying out expressive features knowledge to face characteristic information
Not, in multiple default human face expression features is determined whether, if then control camera is special according to default human face expression
Associated control instruction of taking pictures is levied, the operation closed camera or take pictures again is performed, so that user can be only by hair
Go out different facial expressions and can just take pictures camera to be controlled, for the photographing operation of user provides convenient, improve
Terminal it is intelligent.
Brief description of the drawings
Fig. 1 is the method and step flow chart taken pictures based on facial expression control provided by the present invention.
Fig. 2 is the method structural representation taken pictures based on facial expression control of the present invention.
Fig. 3 is the theory structure block diagram of the system taken pictures based on facial expression control provided by the present invention.
Specific embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that specific embodiment described herein is used only for explaining of the invention, and without
It is of the invention in limiting.
The invention provides a kind of method taken pictures based on facial expression control, as shown in figure 1, methods described includes step
Suddenly：
Step S1, when terminal camera complete shoot forward image after, automatic conversion camera, obtain user images, and to
The characteristic information contained in the image of family is identified, and judges whether containing face characteristic information, if it does, then performing step S2.
After user's using terminal camera obtains forward image, automatic conversion camera obtains user images, and judges to use
Whether contain face characteristic in the image of family, if so, then performing next step.
In the specific implementation, in order to preferably judge whether camera has obtained forward image, the step S1 is also wrapped
Include：
Step S11, after camera is opened, whether judge electric current in camera module beyond pre-set current value, if exceeding,
Automatic conversion camera, obtains user images, otherwise, camera conversion operation is not done.
Detection module of taking pictures can be set to detect photographing operation, Expression Recognition module is set the expression of user is entered
Row identification, when the camera of terminal is opened, uses detection module output level drive signal to the Expression Recognition mould of taking pictures
Block, opens the Expression Recognition module.Whether the detection module detection terminal camera of taking pictures is opened, and according to shooting head mould
Current value in group judges whether to have been taken pictures.
If specifically, when camera module is taken pictures, its current value needs to reach certain threshold value, that is to say default electricity
Flow valuve, according to actual conditions, the pre-set current value could be arranged to 800mA, if detecting the current value in camera module
Beyond 800mA, then it is judged to that current camera module is carrying out photographing operation, the acquisition to user images can be automatically turned on.
If the current value of camera module is less than 800mA, or even it is 0mA to detect, then be judged to that current camera module is clapped
According to operation, the operation for shooting user images now need not be automatically transferred to.
Whether after user images are got, the user images to getting carry out recognition of face, judge wherein contain someone
Face feature, if so, then performing next step.
Step S2, expressive features identification is carried out to face characteristic information, determine whether multiple default human face expression features
In one, if so, then performing step S3.
The face characteristic that will be identified in above-mentioned steps S1 carries out expressive features identification, judges to contain in current face's feature
Be which kind of expression, and the expressive features that will identify that compare with default human face expression feature, determine whether multiple pre-
If one in human face expression feature, if one of them, then performing next step.
Specifically, default human face expression feature is at least 2, one corresponding with the control instruction foundation that control is taken pictures again
Association, another with control stop shoot control instruction foundations it is corresponding association, so as to open control shooting purpose.
The control instruction of taking pictures of step S3, control camera according to corresponding to default human face expression feature, performs closing and takes the photograph
As head or again the operation taken pictures.
The human face expression contained in the user images for getting are identified is characterized as that default human face expression feature is therein
At one, then control camera according to the control instruction corresponding with the default human face expression feature, control camera carries out weight
New photographing operation closes camera.
In order to, control of taking pictures preferably is carried out, also include before the step S1：
Step S01, the default at least two human face expression features corresponding with control instruction of taking pictures, and default human face expression is special
Levy corresponding from different control instructions of taking pictures respectively.
Preferably, the default human face expression feature includes：Expressive features of frowning and smiling face's expressive features；The table of frowning
Feelings feature is corresponding with the control instruction that camera is closed in control, and the control that smiling face's expressive features are taken pictures again with control refers to
Make corresponding.
Specifically, the step S3 also includes：
Step S31, when expressive features are identified as expressive features of frowning, then there is the first control request signal to central processing unit,
Central processing unit calls first control instruction corresponding with the expressive features of frowning, and control camera is taken pictures again.
The step S3 also includes：
Step S31, when expressive features are identified as smiling face's expressive features, then there is the second control request signal to central processing unit,
Central processing unit calls second control instruction corresponding with smiling face's expressive features, and control camera is closed.
In order to be described in more details to the above method, implemented to side of the present invention with its concrete application below
Method is done and is further parsed.
When terminal is taken pictures, according to the facial expression of people, for example whether the expression such as happiness, anger, grief and joy illustrates captured photo
User is allowed to be satisfied with.User browses the picture taken pictures at the interface that camera is opened, if effect is undesirable, for example uses what is knitted one's brows
Expression, then take pictures again according to the expression control camera of knitting one's brows for identifying automatically into shooting interface.If user is to clapping
The picture satisfaction taken the photograph, for example with the expression smiled, then according to the smile expression for identifying, control camera will not enter shooting circle
Face, takes pictures again.Specific embodiment schematic diagram with reference to shown in Fig. 2, in the specific implementation, comprises the following steps：
Step S100, camera open shoot photo after, then be transferred to the operation to the expression recognition of user.
Take pictures detection module and Expression Recognition module can be set, be respectively used to detect photographing operation and to face
Expression is identified.When terminal camera is opened, detection module output level drive signal to the Expression Recognition mould of taking pictures
Block, opens the Expression Recognition module.The detection module of taking pictures detects whether are the intelligent mobile terminal and flat board camera
Open, the current detecting unit taken pictures in detection module detects the current status of the camera module.
If camera module when opening take pictures during event, the current value of the camera module output is more than
800mA.Wherein it is possible to pass through the electric current comparing unit taken pictures in detection module, the camera module output electricity is judged
The state of stream.When the electric current of camera module output is more than 800mA, the electric current comparing unit exports the first level letter
Number taken pictures described in detection module 2, the detection module of taking pictures detects terminal camera opening, and the detection module of taking pictures is defeated
Go out level drive signal to the Expression Recognition module, drive the Expression Recognition module work.
If terminal camera module is closed, the current value of camera module output is close to 0mA.The then inspection of taking pictures
The electric current comparing unit surveyed in module, judges that the camera module output current is 0mA.The then electric current comparing unit output
Second electrical level signal is taken pictures detection module described in, and the detection module of taking pictures detects terminal camera closing, described to take pictures
Detection module stops output level drive signal to the Expression Recognition module, and the Expression Recognition module is closed.
Step S200：When terminal camera is opened, identify that face facial expression is the state frowned, then the expression
Identification module sends the control request signal of Expression Recognition first to central processing unit, asks the central processing unit to control the table
Feelings identification module works.
It should be noted that the expression sensing unit in the Expression Recognition module, by the camera module, sensing
Human face expresses one's feelings.I.e. when the camera module is opened, on the one hand the camera is taken pictures, on the other hand by human face
Expression feeds back to the Expression Recognition module.Herein, the analog-to-digital conversion unit in the Expression Recognition module is by the human face
Expression changes into the first data signal, first data signal by the digital-to-analogue conversion unit expressed one's feelings in sensing unit,
Reduction face facial expression.The central processing unit needs to carry out Expression Recognition control to the Expression Recognition module, makes described
Expression sensing unit in Expression Recognition module correctly senses the expression that output face face is frowned.
The central processing unit calls Expression Recognition first to control letter according to the control request signal of the Expression Recognition first
Number instruction, the output control signal of Expression Recognition first is to the Expression Recognition module, the expression sense in the Expression Recognition module
Unit is answered to export face facial expression.Because now face facial expression is the state of frowning, then the Expression Recognition module sends
To the camera module, the camera module is again turned on camera and takes pictures first Expression Recognition signal.
S300：When the terminal camera is opened, if face facial expression is the state smiled, the then Expression Recognition
Module sends the control request signal of Expression Recognition second to central processing unit, asks the central processing unit control expression to be known
Other module work.
Herein, human face expression is changed into the second numeral letter by the analog-to-digital conversion unit in the Expression Recognition module
Number, second data signal reduces face facial expression by the digital-to-analogue conversion unit in the expression sensing unit.It is described
Central processing unit needs to carry out Expression Recognition control to the Expression Recognition module, makes the expression sense in the Expression Recognition module
Unit is answered correctly to sense the expression that output face face is smiled.
The central processing unit calls Expression Recognition second to control letter according to the control request signal of the Expression Recognition second
Number instruction, the output control signal of Expression Recognition second is to the Expression Recognition module, the expression sense in the Expression Recognition module
Unit is answered to export face facial expression.Because now face facial expression is smile state, then the Expression Recognition module sends
Second Expression Recognition signal to the camera module, close by the camera module.
Based on the above method, present invention also offers a kind of system taken pictures based on facial expression control, such as Fig. 3
It is shown, including：
Characteristics of image identification module 110, for after terminal camera completes to shoot forward image, automatic conversion camera to be obtained
Take user images, and characteristic information to containing in user images is identified, and judges whether to contain face characteristic information；Its work(
Can be as described in step S1.
Expressive features identification module 120, for when face characteristic information is contained in user images, then to face characteristic information
Expressive features identification is carried out, in multiple default human face expression features is determined whether；Its function is as described in step S2.
Control photo module 130, for containing default human face expression feature, then control shooting in expressive features are judged
Take pictures control instruction of the head according to corresponding to default human face expression feature, performs the operation closed camera or take pictures again, its
Function is as described in step S3.
The system also includes：
Expressive features presetting module, for presetting at least two human face expression features corresponding with control instruction of taking pictures, and will
Default human face expression feature is corresponding from different control instructions of taking pictures respectively.
Described image feature recognition module includes：
Shot detection unit, for whether after camera is opened, judging the electric current in camera module beyond pre-set current value,
If exceeding, automatic conversion camera obtains user images, and characteristic information to containing in user images is identified.
The default human face expression feature includes：Expressive features of frowning and smiling face's expressive features；The control photo module
Including：
Again take pictures control unit, for being identified as expressive features of frowning when expressive features, then the first control request signal occurs
To central processing unit, central processing unit calls the first control instruction being associated with the expressive features of frowning, and controls camera
Again take pictures.
The control module also includes：
Photographing unit is closed, for being identified as smiling face's expressive features when expressive features, then the second control request signal occurs in
Central processor, central processing unit calls the second control instruction being associated with smiling face's expressive features, and control camera is closed.
The invention provides a kind of method and system taken pictures based on facial expression control, completed by when terminal camera
After shooting forward image, automatic conversion camera obtains user images, and characteristic information to containing in user images is known
Not, judge whether containing face characteristic information, if it does, then carrying out expressive features identification to face characteristic information, judge whether
It it is one in the default human face expression feature of multiple, if then bat of the control camera according to associated by default human face expression feature
According to control instruction, the operation closed camera or take pictures again is performed, so that user can be only by sending different faces
Expression can just take pictures to camera and be controlled, and for the photographing operation of user is provided conveniently, improve the intelligent of terminal.
It is understood that for those of ordinary skills, can be with technology according to the present invention scheme and its hair
Bright design is subject to equivalent or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Shield scope.
Claims (10)
1. it is a kind of based on the facial expression method taken pictures of control, it is characterised in that including step：
Step A, after terminal camera completes to shoot forward image, automatic conversion camera obtains user images, and to user
The characteristic information contained in image is identified, and judges whether containing face characteristic information, if it does, then performing step B；
Step B, expressive features identification is carried out to face characteristic information, determine whether in multiple default human face expression features
It is individual, if so, then performing step C；
Step C, control camera are performed and close camera according to the control instruction of taking pictures being associated with default human face expression feature
Or the operation taken pictures again.
2. it is according to claim 1 based on the facial expression method taken pictures of control, it is characterised in that before the step A
Also include：
Step A01, the default at least two human face expression features corresponding with control instruction of taking pictures, and default human face expression is special
Levy is associated from different control instructions of taking pictures respectively.
3. it is according to claim 1 based on the facial expression method taken pictures of control, it is characterised in that the step A is also wrapped
Include：
Step A11, after camera is opened, whether judge electric current in camera module beyond pre-set current value, if exceeding,
Automatic conversion camera, obtains user images, otherwise, does not carry out camera conversion operation.
4. it is according to claim 1 based on the facial expression method taken pictures of control, it is characterised in that the default face table
Feelings feature includes：Expressive features of frowning and smiling face's expressive features；The step C also includes：
Step C1, when expressive features are identified as expressive features of frowning, then there is the first control request signal to central processing unit, in
Central processor calls the first control instruction associated with the expressive features of frowning, and control camera is taken pictures again.
5. it is according to claim 4 based on the facial expression method taken pictures of control, it is characterised in that the step C is also wrapped
Include：
Step C2, when expressive features are identified as smiling face's expressive features, then there is the second control request signal to central processing unit, in
Central processor calls the second control instruction associated with smiling face's expressive features, and control camera is closed.
6. a kind of based on the facial expression system taken pictures of control, it is characterised in that including：
Characteristics of image identification module, for after terminal camera completes to shoot forward image, automatic conversion camera to be obtained and used
Family image, and characteristic information to containing in user images is identified, and judges whether to contain face characteristic information；
Expressive features identification module, for when face characteristic information is contained in user images, then carrying out table to face characteristic information
Feelings feature recognition, determines whether in multiple default human face expression features；
Control photo module, for when judging in expressive features containing default human face expression feature, then control camera according to
Control instruction of taking pictures corresponding to default human face expression feature, performs the operation closed camera or take pictures again.
7. it is according to claim 6 based on the facial expression system taken pictures of control, it is characterised in that the system is also wrapped
Include：
Expressive features presetting module, for presetting at least two human face expression features corresponding with control instruction of taking pictures, and will
Default human face expression feature is associated from different control instructions of taking pictures respectively.
8. it is according to claim 6 based on the facial expression system taken pictures of control, it is characterised in that described image feature is known
Other module includes：
Shot detection unit, for whether after camera is opened, judging the electric current in camera module beyond pre-set current value,
If exceeding, automatic conversion camera obtains user side image, otherwise, does not carry out camera conversion operation.
9. it is according to claim 6 based on the facial expression system taken pictures of control, it is characterised in that the default face table
Feelings feature includes：Expressive features of frowning and smiling face's expressive features；The control photo module includes：
Again take pictures control unit, for being identified as expressive features of frowning when expressive features, then the first control request signal occurs
To central processing unit, central processing unit calls the first control instruction being associated with the expressive features of frowning, and controls camera
Again take pictures.
10. it is according to claim 9 based on the facial expression system taken pictures of control, it is characterised in that the control module
Also include：
Photographing unit is closed, for being identified as smiling face's expressive features when expressive features, then the second control request signal occurs in
Central processor, central processing unit calls the second control instruction being associated with smiling face's expressive features, and control camera is closed.
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| CN109948423A (en) * | 2019-01-18 | 2019-06-28 | 特斯联（北京）科技有限公司 | It travels using face and the unmanned plane of gesture recognition with method of servicing and unmanned plane |
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| CN111783728A (en) * | 2020-07-15 | 2020-10-16 | 网易（杭州）网络有限公司 | Information interaction method and device and terminal equipment |
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Application publication date: 20170609 |